Habitability in different climate models


F. Montazeri1, M. Bahrami1, S.J. Jafarzadeh1

1International Occultation Timing Association-Middle East Section (IOTA-ME), Iran; info@iota-me.com


As the number of exoplanets discovered in the habitability region grows, attention to different models describing habitability also increases. In this paper, we focus on three more important models and discuss the basics of each one. The first model is based on the black body radiation of the star or stars in binary systems.The second one is spectral energy distribution, which the capability of the planet for habitability depends on the total flux received by it from host star(s) on top of its atmosphere. The last method is energy balance model. Zero-dimensional EBM determines a single temperature for the planet by the radiative balance between incoming solar insolation and the emitted long wave radiation. In one-dimensional EBM, the surface is divided into latitudinal bands and for each one, a temperature is calculated. The habitability is determined based on the fraction of time and planet surface, which remains in the range of a habitable climate.

Keywords: Habitability, Exoplanets, Binary stars, Climate

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